METHOD OF 1,6-DIARYL-3,4-DIHYDROXY-2,4-HEXADIENE-1,6- DIONES SYNTHESIS

摘要

SUMMARY OF THE INVENTION method of Preparation 1 b Arip di-3,4-dihydroxy-2,4-dione-geksadien- 1.6 Reagent 1: 5-aryl-substituted 2,3-dihydro-2,3-furandiok Reagent 2: Erill for --substituted-methyl-ketone. Reaction conditions: in the presence of catalytic amounts of potassium carbonate in ethyl acetate medium at 70-77 & amp; deg; C 30 - 60 min. Table 1